i7 Overclocking. I'm worried about voltages.

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x-2tha-z

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#1 x-2tha-z
Member since 2003 • 8994 Posts
I've been wanting to overclock my i7 920 since I got it. I've never overclocked anything before. I'm a total beginner. I'm not thinking of anything huge. I'd just like to start with an oc to around 3.2Ghz. My i7 920 is a C0/C1 Revision with Stepping 4. I've got an ASUS P6T Deluxe V2 mobo and 2 x 3GB 1600Mhz Corsair RAM. I've read guides and watched videos but I just can't get my head around it. The voltage increase is the thing that worries me most because I bought a two year warranty with my PC and the makers say if I increase the voltage and it damages the PC I'll void my warranty. Basically, I was thinking about leaving everything as it is but turning turbo mode off and increasing the bclk to 160. This would give me the 3.2Ghz I'm aiming for. Would I be able to do this and leave everything as it is? Pretty much all the settings for voltages and RAM are set to auto. I've read that overclocking with voltages set to auto can lead to over voltage? IDK, can anyone here point me in the right direction?
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kilerchese

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#2 kilerchese
Member since 2008 • 831 Posts

I was able to do 3.6 on stock cooling and stock voltages on my i7 920 C0 and MSI X58 Platinum.

Try using a smaller CPU multiplier with a higher BLCK so that it'll produce less heat. I've seen a lot of people OC the i7 on the Extreme Overclocking Forums and a lot of them show that higher BLCK with lower CPU multiplier can get you higher stable speeds and less temps.

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GTR12

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#3 GTR12
Member since 2006 • 13490 Posts

I dont think you need to touch the voltages for 3.2Ghz, its just those higher overclocks, where stabality is an issue, but im sure you won't be aiming for those crazy high overclocks yet, im talking about the 4Ghz and higher.

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x-2tha-z

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#4 x-2tha-z
Member since 2003 • 8994 Posts

I was able to do 3.6 on stock cooling and stock voltages on my i7 920 C0 and MSI X58 Platinum.

Try using a smaller CPU multiplier with a higher BLCK so that it'll produce less heat. I've seen a lot of people OC the i7 on the Extreme Overclocking Forums and a lot of them show that higher BLCK with lower CPU multiplier can get you higher stable speeds and less temps.

kilerchese
Stock voltages? What are they? All my voltages are set to auto.
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x-2tha-z

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#5 x-2tha-z
Member since 2003 • 8994 Posts

I dont think you need to touch the voltages for 3.2Ghz, its just those higher overclocks, where stabality is an issue, but im sure you won't be aiming for those crazy high overclocks yet, im talking about the 4Ghz and higher.

Amith12
I just want to go to 3.2Ghz for the moment. I can get 3.2 by turning off turbo mode (this puts the multiplier to 20) and increasing the bclk to 160. This would give me 3.2Ghz. I'm just wondering if it's okay to do this and leave the voltages set to auto?
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kilerchese

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#6 kilerchese
Member since 2008 • 831 Posts

It'll usually go to default voltages if you just increase or decrease by one. Thats what it does on mine anyways.

It's 1.1v~1.2v though.

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GTR12

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#7 GTR12
Member since 2006 • 13490 Posts

[QUOTE="Amith12"]

I dont think you need to touch the voltages for 3.2Ghz, its just those higher overclocks, where stabality is an issue, but im sure you won't be aiming for those crazy high overclocks yet, im talking about the 4Ghz and higher.

x-2tha-z

I just want to go to 3.2Ghz for the moment. I can get 3.2 by turning off turbo mode (this puts the multiplier to 20) and increasing the bclk to 160. This would give me 3.2Ghz. I'm just wondering if it's okay to do this and leave the voltages set to auto?

Yes, its fine, if something goes wrong, eg; bluescreen, go back to BIOS and change it back to what it was.

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x-2tha-z

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#8 x-2tha-z
Member since 2003 • 8994 Posts

[QUOTE="x-2tha-z"][QUOTE="Amith12"]

I dont think you need to touch the voltages for 3.2Ghz, its just those higher overclocks, where stabality is an issue, but im sure you won't be aiming for those crazy high overclocks yet, im talking about the 4Ghz and higher.

Amith12

I just want to go to 3.2Ghz for the moment. I can get 3.2 by turning off turbo mode (this puts the multiplier to 20) and increasing the bclk to 160. This would give me 3.2Ghz. I'm just wondering if it's okay to do this and leave the voltages set to auto?

Yes, its fine, if something goes wrong, eg; bluescreen, go back to BIOS and change it back to what it was.

I did it and everything seems okay but I've loaded CPU-Z and in the specification box it still says i7 920 @ 2.67GHz. Shouldn't this read 3.2GHZ now? How do I check my CPU speed?
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GTR12

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#9 GTR12
Member since 2006 • 13490 Posts

You need to turn off that intel speed step thing, it automatically downclocks cpu speed when you dont need all the speed, it will go back to 3.2 when your gaming or something.

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x-2tha-z

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#10 x-2tha-z
Member since 2003 • 8994 Posts

You need to turn off that intel speed step thing, it automatically downclocks cpu speed when you dont need all the speed, it will go back to 3.2 when your gaming or something.

Amith12
Ok. Thanks a lot.